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Scilla [17]
3 years ago
5

Angiosperms do not need water for fertilization. Why?

Biology
2 answers:
sdas [7]3 years ago
8 0

Answer:

The answer is c) a pollen tube grows from the pollen grain into the ovary.

Explanation:

I got it right on the quiz

horsena [70]3 years ago
3 0
They do not require water because the stamen releases male gametophytes that are carried by the wind to the egg in the carpel.
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Which molecule would be the most affected by limited nitrogen?
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The molecule that would be affected by 'limited nitrogen' is the myofibrillar proteins in muscle. Explanation: The myofibrils of the muscle have a number of protein molecules.

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3 years ago
Energy used by the body to perform muscular contractions is called adenosine diphosphate, or ADP.
Bezzdna [24]

Answer:

The energy used for muscular cont ration is ATP(adenosine triphosphate) This is the energy currency produced in the mitochondrial during cellular respiration.

During muscles contraction.The ATPs is broken down to ADP and Pi.

This is the breakdown of energy rich bonds binding phosphate ions with ATP.The breakdown of the bonds produced -32kJper the 3 bonds in ATP. Therefore as each bond is broken, energy is produced for muscle contraction

It is an exergonic reaction with production of heat.

Thus ATP is used for muscle contraction.ADP is the intermediate of ATP when one Phosphate is removed during the breakdown.

Thus the sequence is Adenosine triphosphate (3 phosphate) to Adenosine diphosphate(2 phosphate) to Adenosine monophosphate (1 phosphate)

Each bond breakin gives equal energy of -32kJpermol.

Explanation:

Explanation:

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3 years ago
Explain the distribution of the humid subtropical hot-summer and mediterranean dry summer climates in north america, and the dif
sergeinik [125]

In general, the warm to hot summers and relatively mild winters of the Mediterranean and humid subtropical climates are similar. More people live in humid subtropical regions, which are occasionally invaded by chilly air in the winter.

Overall, this region's winter temperatures are typically 10 to 20 degrees Fahrenheit cooler than those in Mediterranean regions.

Whether or whether the summers are hot or warm in a region with a Mediterranean climate determines the subcategory. In comparison to the dry summer heat of the Mediterranean climate zones, the summers in the humid subtropical zone are equally warm or hot, but they typically have significantly more humidity, resulting in sultry weather that generally feels more uncomfortable.

What is humidity?

The amount of water vapor in the air is known as humidity. The gaseous form of water, known as water vapor, is typically undetectable to the  eye. The presence of precipitation, dew, or fog is predicted by the humidity.

The temperature and pressure of the system of interest affect humidity. In comparison to warm air, cool air has a higher relative humidity when the same amount of water vapor is present. The dew point is another relevant variable. As the temperature rises, more water vapor is required until saturation is reached. A parcel of air will eventually approach saturation as its temperature drops, without adding or losing water mass. A parcel of air can include a wide range of water vapor concentrations.

To know about humidity click on the link below:

brainly.com/question/1129115

#SPJ4

7 0
2 years ago
Choose three of the organ systems in the human body. Describe the structure and function of
kozerog [31]

Answer:

2

Explanation:

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3 years ago
The epidermis of the skin consists of many layers of tightly packed cells. The outermost layer of cells are dead. Which best des
mart [117]
The answer to this one is <span>B.Blood vessels are not located in the epidermis, but in the underlying dermal connective tissue.

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